Glass composition



Patented May 24, 1927.

UNITE WARREN I. BLEEGKEB,

amiss c'omrosrrron.

No Drawing. Application filed July 22,

.tiful and permanent .red color.

1 attain this object byadding to any compound suitable for the production of glass,

- and clearness,

. and

\ mixture.

/ ing conditions if' presentin the material. will be understood thatshcul'd theinixture o uranium in a quantity of atleast two per cent (2%) of the weight of-th'e mixture together with an oxidizing agent.

\Vhile any compound of uranium is suitable for the purpose, the use of. uranium oxide is preferred, and the quantity in which it is added to the glass-composition may vary from two per cent (2%) to twel ve per cent (12%) of theweight thereof. All

'- oxides of uranium are adapted for use 111- the desired color withresults that vary in acthe quantity of oxygen presto use a uranium oxid having from 2% to 12% of uranium calculated to 'protosesqui-oxide (U 0 The oxidizing agent I prefer to use is nitre or sodiuin'nitrate (NaNO,) in proper quantity for the complete oxidation 'of the uranium or. its equivalent, in its environment'.

- Litharge and borax may be added to the hence the brilliancy of the the production of glass of .cordance with mixture to en lass: and-the. color of'the product may be deepened by the addition of manganese dioxide in quantities varying from one quarter to two per cent of the weight of the My invention is applicable ,tojany'sand soda ash mixture with or without other ingredients ,and the addition of litharg'e, borax and manganese is optional and large-'- 1 dependent on the use for which-theprodnot is intended. The main function of the oxidizing, agent is to counteract the eflect of traces of organic matter or to correct reduchenna borax;

t signature. f I WARREN F. BLEEOKER.

1922.- Serial no 576,886.-

ingredients be originally in the correct state of oxidation, the addition of the oxidizing agent would be unnecessary. a o 1 By proper selection and preparation the uranium compound the color of the lass may be varied in depth from a very i ht to a deep ruby, and I desire it un erstood that the Word scription and the hereunto appended claims, embraces any color, shade or tintwhich can be produced as herein descri The amount. of mixture depends largely present in the raw 'm'ateriah'and its bed. v

manganese added to the on the impurities exact percentage can be determined by experiment only. I

The following formula I have found to be productive of a commerciall valuable brilliant glass of a transparent red color, adapted for use in ture of an 7 article in which suchqualities are desired: 75 parts,'by weight, of sand; 80 parts, by weight, of soda ash; 70 parts, by weight, of litharge; 20 parts, by 'weight, 0

3O parts,by weight, of nitre; 24 parts, by weight, of uranium'oxide; and (i necessary). 1 to 4 parts, by weight, of manganese dioxide.

\Vhat I claim and desire to secure by Letters Patent is: 1. A transparent, henna colored lead glass resulting from a composition consisting o sand 7 5 parts, soda ash 80 parts, litharge 70 parts, borax 20 parts, nitre 30 parts, and uranium oxide from 4 to 24 parts,

2. A transparent, henna colored resulting from a composition consisting of sand 7 5 parts, soda ash 80, parts, '7 0' parts, vborax 20 parts, nitre 30 parts, uranium oxide from 4 to 24 parts, and manganese dioxide from one-half to 4 parts. i

In testimony. whereof I have; aflixed my o STATES PATENT oFFicE,

OF BOULDER, COLORADO.

by the use of uranium oxide red as used in this deeautifully/fl the manufaclead glass litharge 

